# Top 10 Outbound Spam Guard (OSG) Alternatives & Competitors **Average Rating:** 5.0/5 **Total Number of Reviews:** 1 Explore the best alternatives to Outbound Spam Guard (OSG) for users who need new software features or want to try different solutions. Other important factors to consider when researching alternatives to Outbound Spam Guard (OSG) include ease of use and reliability. The best overall Outbound Spam Guard (OSG) alternative is Validity Engage. Other similar apps like Outbound Spam Guard (OSG) are Paubox, Proofpoint Core Email Protection, Valimail, and Check Point Email Security. Outbound Spam Guard (OSG) alternatives can be found in [Email Anti-spam Software](https://www.g2.com/categories/email-anti-spam) but may also be in [Email Testing Software](https://www.g2.com/categories/email-testing) or [Email Encryption Software](https://www.g2.com/categories/email-encryption). ## Best Paid & Free Alternatives to Outbound Spam Guard (OSG) - [Validity Engage](https://www.g2.com/products/validity-engage/reviews) - [Paubox](https://www.g2.com/products/paubox/reviews) - [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews) - [Valimail](https://www.g2.com/products/valimail/reviews) - [Check Point Email Security](https://www.g2.com/products/check-point-email-security/reviews) - [CyberSentriq](https://www.g2.com/products/cybersentriq/reviews) - [Microsoft Defender for Office 365](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews) - [SaneBox](https://www.g2.com/products/sanebox/reviews) - [SpamTitan Email Security](https://www.g2.com/products/spamtitan-email-security/reviews) - [Vade](https://www.g2.com/products/vade/reviews) ## Top 10 Alternatives to Outbound Spam Guard (OSG) Recently Reviewed By G2 Community Browse options below. Based on reviewer data, you can see how Outbound Spam Guard (OSG) stacks up to the competition, check reviews from current & previous users in industries like Entertainment, and find the best product for your business. ### 1. [Validity Engage](https://www.g2.com/products/validity-engage/reviews) By Validity Inc **Average Rating:** 4.5/5 **Total Reviews:** 989 Litmus is an email marketing solution that works alongside your ESP to help you create error-free emails in less time. In one platform, you can build faster, personalize better, test thoroughly, monitor deliverability, and analyze email performance. Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs Validity Engage](https://www.g2.com/compare/outbound-spam-guard-osg-vs-validity-engage) **Compare Validity Engage with other alternatives:** - [Validity Engage vs Paubox](https://www.g2.com/compare/paubox-vs-validity-engage) - [Validity Engage vs Proofpoint Core Email Protection](https://www.g2.com/compare/proofpoint-core-email-protection-vs-validity-engage) - [Validity Engage vs Valimail](https://www.g2.com/compare/validity-engage-vs-valimail) - [Validity Engage vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-validity-engage) - [Validity Engage vs CyberSentriq](https://www.g2.com/compare/cybersentriq-vs-validity-engage) - [Validity Engage vs Microsoft Defender for Office 365](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-validity-engage) - [Validity Engage vs SaneBox](https://www.g2.com/compare/sanebox-vs-validity-engage) - [Validity Engage vs SpamTitan Email Security](https://www.g2.com/compare/spamtitan-email-security-vs-validity-engage) - [Validity Engage vs Vade](https://www.g2.com/compare/vade-vs-validity-engage) ### 2. [Paubox](https://www.g2.com/products/paubox/reviews) By Paubox **Average Rating:** 4.9/5 **Total Reviews:** 622 Paubox is an easy way to send and receive HIPAA compliant email. Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs Paubox](https://www.g2.com/compare/outbound-spam-guard-osg-vs-paubox) **Compare Paubox with other alternatives:** - [Paubox vs Validity Engage](https://www.g2.com/compare/paubox-vs-validity-engage) - [Paubox vs Proofpoint Core Email Protection](https://www.g2.com/compare/paubox-vs-proofpoint-core-email-protection) - [Paubox vs Valimail](https://www.g2.com/compare/paubox-vs-valimail) - [Paubox vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-paubox) - [Paubox vs CyberSentriq](https://www.g2.com/compare/cybersentriq-vs-paubox) - [Paubox vs Microsoft Defender for Office 365](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-paubox) - [Paubox vs SaneBox](https://www.g2.com/compare/paubox-vs-sanebox) - [Paubox vs SpamTitan Email Security](https://www.g2.com/compare/paubox-vs-spamtitan-email-security) - [Paubox vs Vade](https://www.g2.com/compare/paubox-vs-vade) ### 3. [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews) By Proofpoint **Average Rating:** 4.6/5 **Total Reviews:** 601 Proofpoint Core Email Protection stops malware and non-malware threats such as impostor email. Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs Proofpoint Core Email Protection](https://www.g2.com/compare/outbound-spam-guard-osg-vs-proofpoint-core-email-protection) **Compare Proofpoint Core Email Protection with other alternatives:** - [Proofpoint Core Email Protection vs Validity Engage](https://www.g2.com/compare/proofpoint-core-email-protection-vs-validity-engage) - [Proofpoint Core Email Protection vs Paubox](https://www.g2.com/compare/paubox-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs Valimail](https://www.g2.com/compare/proofpoint-core-email-protection-vs-valimail) - [Proofpoint Core Email Protection vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs CyberSentriq](https://www.g2.com/compare/cybersentriq-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs Microsoft Defender for Office 365](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs SaneBox](https://www.g2.com/compare/proofpoint-core-email-protection-vs-sanebox) - [Proofpoint Core Email Protection vs SpamTitan Email Security](https://www.g2.com/compare/proofpoint-core-email-protection-vs-spamtitan-email-security) - [Proofpoint Core Email Protection vs Vade](https://www.g2.com/compare/proofpoint-core-email-protection-vs-vade) ### 4. [Valimail](https://www.g2.com/products/valimail/reviews) By Valimail **Average Rating:** 4.5/5 **Total Reviews:** 656 Valimail is the only solution that automates the path to DMARC enforcement from start to finish, providing rapid, ongoing protection against fraudulent use of your domains. Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs Valimail](https://www.g2.com/compare/outbound-spam-guard-osg-vs-valimail) **Compare Valimail with other alternatives:** - [Valimail vs Validity Engage](https://www.g2.com/compare/validity-engage-vs-valimail) - [Valimail vs Paubox](https://www.g2.com/compare/paubox-vs-valimail) - [Valimail vs Proofpoint Core Email Protection](https://www.g2.com/compare/proofpoint-core-email-protection-vs-valimail) - [Valimail vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-valimail) - [Valimail vs CyberSentriq](https://www.g2.com/compare/cybersentriq-vs-valimail) - [Valimail vs Microsoft Defender for Office 365](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-valimail) - [Valimail vs SaneBox](https://www.g2.com/compare/sanebox-vs-valimail) - [Valimail vs SpamTitan Email Security](https://www.g2.com/compare/spamtitan-email-security-vs-valimail) - [Valimail vs Vade](https://www.g2.com/compare/vade-vs-valimail) ### 5. [Check Point Email Security](https://www.g2.com/products/check-point-email-security/reviews) By Check Point Software Technologies **Average Rating:** 4.6/5 **Total Reviews:** 534 Check Point Harmony Email & Office, protects enterprise data by preventing targeted attacks on SaaS applications and cloud-based email. Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-outbound-spam-guard-osg) **Compare Check Point Email Security with other alternatives:** - [Check Point Email Security vs Validity Engage](https://www.g2.com/compare/check-point-email-security-vs-validity-engage) - [Check Point Email Security vs Paubox](https://www.g2.com/compare/check-point-email-security-vs-paubox) - [Check Point Email Security vs Proofpoint Core Email Protection](https://www.g2.com/compare/check-point-email-security-vs-proofpoint-core-email-protection) - [Check Point Email Security vs Valimail](https://www.g2.com/compare/check-point-email-security-vs-valimail) - [Check Point Email Security vs CyberSentriq](https://www.g2.com/compare/check-point-email-security-vs-cybersentriq) - [Check Point Email Security vs Microsoft Defender for Office 365](https://www.g2.com/compare/check-point-email-security-vs-microsoft-microsoft-defender-for-office-365) - [Check Point Email Security vs SaneBox](https://www.g2.com/compare/check-point-email-security-vs-sanebox) - [Check Point Email Security vs SpamTitan Email Security](https://www.g2.com/compare/check-point-email-security-vs-spamtitan-email-security) - [Check Point Email Security vs Vade](https://www.g2.com/compare/check-point-email-security-vs-vade) ### 6. [CyberSentriq](https://www.g2.com/products/cybersentriq/reviews) By CyberSentriq **Average Rating:** 4.6/5 **Total Reviews:** 397 Cybersentriq provides Integrated Cybersecurity & Data Protection for Businesses and Managed Service Providers. Our unified AI-powered platform offers all in one email phishing and spam protection, DNS filtering, security awareness training, email archiving, M365 backup and recovery - enabling users to ensure compliance, easily store and retrieve data, and protect against online threats such as phishing and ransomware Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs CyberSentriq](https://www.g2.com/compare/cybersentriq-vs-outbound-spam-guard-osg) **Compare CyberSentriq with other alternatives:** - [CyberSentriq vs Validity Engage](https://www.g2.com/compare/cybersentriq-vs-validity-engage) - [CyberSentriq vs Paubox](https://www.g2.com/compare/cybersentriq-vs-paubox) - [CyberSentriq vs Proofpoint Core Email Protection](https://www.g2.com/compare/cybersentriq-vs-proofpoint-core-email-protection) - [CyberSentriq vs Valimail](https://www.g2.com/compare/cybersentriq-vs-valimail) - [CyberSentriq vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-cybersentriq) - [CyberSentriq vs Microsoft Defender for Office 365](https://www.g2.com/compare/cybersentriq-vs-microsoft-microsoft-defender-for-office-365) - [CyberSentriq vs SaneBox](https://www.g2.com/compare/cybersentriq-vs-sanebox) - [CyberSentriq vs SpamTitan Email Security](https://www.g2.com/compare/cybersentriq-vs-spamtitan-email-security) - [CyberSentriq vs Vade](https://www.g2.com/compare/cybersentriq-vs-vade) ### 7. [Microsoft Defender for Office 365](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews) By Microsoft **Average Rating:** 4.5/5 **Total Reviews:** 299 Microsoft Defender for Office 365 is a comprehensive security solution designed to protect organizations from advanced threats targeting email and collaboration tools within the Microsoft 365 environment. It offers robust protection against phishing, malware, and business email compromise, ensuring secure communication and collaboration across platforms like Exchange Online, Microsoft Teams, SharePoint, and OneDrive. Key Features and Functionality: - Safe Attachments: Scans email attachments in a secure environment to detect and block malicious content before it reaches users. - Safe Links: Provides real-time protection by analyzing URLs at the time of click, safeguarding users from malicious links. - Anti-Phishing Policies: Utilizes advanced algorithms and machine learning to identify and mitigate phishing attempts, including those involving domain impersonation. - Protection for Collaboration Tools: Extends security measures to Microsoft Teams, SharePoint, and OneDrive, ensuring safe file sharing and collaboration. - Automated Investigation and Response (AIR): Automates threat investigation processes, enabling swift identification and remediation of security incidents. - Attack Simulation Training: Offers tools to simulate phishing attacks, helping organizations educate employees and strengthen their security posture. Primary Value and Problem Solved: Microsoft Defender for Office 365 addresses the critical need for advanced threat protection in today's digital workplace. By integrating seamlessly with Microsoft 365 applications, it provides a unified defense against sophisticated cyber threats, reducing the risk of data breaches and ensuring business continuity. Its comprehensive approach not only safeguards email communications but also secures collaborative platforms, enabling organizations to operate confidently in a secure environment. Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs Microsoft Defender for Office 365](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-outbound-spam-guard-osg) **Compare Microsoft Defender for Office 365 with other alternatives:** - [Microsoft Defender for Office 365 vs Validity Engage](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-validity-engage) - [Microsoft Defender for Office 365 vs Paubox](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-paubox) - [Microsoft Defender for Office 365 vs Proofpoint Core Email Protection](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-proofpoint-core-email-protection) - [Microsoft Defender for Office 365 vs Valimail](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-valimail) - [Microsoft Defender for Office 365 vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-microsoft-microsoft-defender-for-office-365) - [Microsoft Defender for Office 365 vs CyberSentriq](https://www.g2.com/compare/cybersentriq-vs-microsoft-microsoft-defender-for-office-365) - [Microsoft Defender for Office 365 vs SaneBox](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-sanebox) - [Microsoft Defender for Office 365 vs SpamTitan Email Security](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-spamtitan-email-security) - [Microsoft Defender for Office 365 vs Vade](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-vade) ### 8. [SaneBox](https://www.g2.com/products/sanebox/reviews) By SaneBox **Average Rating:** 4.8/5 **Total Reviews:** 242 SaneBox prioritizes important email and moves everything else into a separate folder. The contents of this folder are summarized in a daily digest for quick and easy bulk processing. Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs SaneBox](https://www.g2.com/compare/outbound-spam-guard-osg-vs-sanebox) **Compare SaneBox with other alternatives:** - [SaneBox vs Validity Engage](https://www.g2.com/compare/sanebox-vs-validity-engage) - [SaneBox vs Paubox](https://www.g2.com/compare/paubox-vs-sanebox) - [SaneBox vs Proofpoint Core Email Protection](https://www.g2.com/compare/proofpoint-core-email-protection-vs-sanebox) - [SaneBox vs Valimail](https://www.g2.com/compare/sanebox-vs-valimail) - [SaneBox vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-sanebox) - [SaneBox vs CyberSentriq](https://www.g2.com/compare/cybersentriq-vs-sanebox) - [SaneBox vs Microsoft Defender for Office 365](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-sanebox) - [SaneBox vs SpamTitan Email Security](https://www.g2.com/compare/sanebox-vs-spamtitan-email-security) - [SaneBox vs Vade](https://www.g2.com/compare/sanebox-vs-vade) ### 9. [SpamTitan Email Security](https://www.g2.com/products/spamtitan-email-security/reviews) By CyberSentriq **Average Rating:** 4.5/5 **Total Reviews:** 199 Advanced yet easy to use Business Email Security Solution. Protects your business from malicious threats via email such as phishing, malware and spoofing. Double AV protection included. Office 365 Friendly. Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs SpamTitan Email Security](https://www.g2.com/compare/outbound-spam-guard-osg-vs-spamtitan-email-security) **Compare SpamTitan Email Security with other alternatives:** - [SpamTitan Email Security vs Validity Engage](https://www.g2.com/compare/spamtitan-email-security-vs-validity-engage) - [SpamTitan Email Security vs Paubox](https://www.g2.com/compare/paubox-vs-spamtitan-email-security) - [SpamTitan Email Security vs Proofpoint Core Email Protection](https://www.g2.com/compare/proofpoint-core-email-protection-vs-spamtitan-email-security) - [SpamTitan Email Security vs Valimail](https://www.g2.com/compare/spamtitan-email-security-vs-valimail) - [SpamTitan Email Security vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-spamtitan-email-security) - [SpamTitan Email Security vs CyberSentriq](https://www.g2.com/compare/cybersentriq-vs-spamtitan-email-security) - [SpamTitan Email Security vs Microsoft Defender for Office 365](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-spamtitan-email-security) - [SpamTitan Email Security vs SaneBox](https://www.g2.com/compare/sanebox-vs-spamtitan-email-security) - [SpamTitan Email Security vs Vade](https://www.g2.com/compare/spamtitan-email-security-vs-vade) ### 10. [Vade](https://www.g2.com/products/vade/reviews) By Vade **Average Rating:** 4.6/5 **Total Reviews:** 180 Vade is the global leader on anti-phishing, spear phishing, malware and ransomware filtering. Categories in common with Outbound Spam Guard (OSG): [Email Anti-spam](https://www.g2.com/categories/email-anti-spam) **Compare:** [Outbound Spam Guard (OSG) vs Vade](https://www.g2.com/compare/outbound-spam-guard-osg-vs-vade) **Compare Vade with other alternatives:** - [Vade vs Validity Engage](https://www.g2.com/compare/vade-vs-validity-engage) - [Vade vs Paubox](https://www.g2.com/compare/paubox-vs-vade) - [Vade vs Proofpoint Core Email Protection](https://www.g2.com/compare/proofpoint-core-email-protection-vs-vade) - [Vade vs Valimail](https://www.g2.com/compare/vade-vs-valimail) - [Vade vs Check Point Email Security](https://www.g2.com/compare/check-point-email-security-vs-vade) - [Vade vs CyberSentriq](https://www.g2.com/compare/cybersentriq-vs-vade) - [Vade vs Microsoft Defender for Office 365](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-vade) - [Vade vs SaneBox](https://www.g2.com/compare/sanebox-vs-vade) - [Vade vs SpamTitan Email Security](https://www.g2.com/compare/spamtitan-email-security-vs-vade) ## Explore Articles - [What is the best load balancing software for a fast-growing SaaS app that needs something scalable now but does not want to over-engineer the architecture too early?](https://www.g2.com/discussions/what-is-the-best-load-balancing-software-for-a-fast-growing-saas-app-that-needs-something-scalable-now-but-does-not-want-to-over-engineer-the-architecture-too-early) - [What is the highest-rated feature management software for product teams running controlled rollouts and beta tests?](https://www.g2.com/discussions/what-is-the-highest-rated-feature-management-software-for-product-teams-running-controlled-rollouts-and-beta-tests) - [Top tools for linking bugs to project management boards](https://www.g2.com/discussions/top-tools-for-linking-bugs-to-project-management-boards) - [Which bot platforms work well for ecommerce websites that need to handle product questions, cart recovery and order tracking automatically?](https://www.g2.com/discussions/which-bot-platforms-work-well-for-ecommerce-websites-that-need-to-handle-product-questions-cart-recovery-and-order-tracking-automatically) - [What exit interview management tools have the most intuitive design for increasing response rates compared to traditional form-based surveys?](https://www.g2.com/discussions/what-exit-interview-management-tools-have-the-most-intuitive-design-for-increasing-response-rates-compared-to-traditional-form-based-surveys) - [Which video content creation platform offers the best editing features?](https://www.g2.com/discussions/which-video-content-creation-platform-offers-the-best-editing-features) ## Spotlight Categories - [Employer of Record (EOR) Software](https://www.g2.com/categories/employer-of-record-eor) - [Virtual Data Room Software](https://www.g2.com/categories/virtual-data-room-vdr) - [Generative AI Infrastructure Software](https://www.g2.com/categories/generative-ai-infrastructure)